Dear Anant, Systems architecture is your friend...
I usually have the following servers: 1) E-mail firewall - a real/virtual computer, connected by one interface to the internet and by another interface to the local network, who only receives e-mail from outside, and don´t permit unwanted e-mails like the ones you said. It runs postfix only, or a postfix + amavis combo. 2) E-mail server - another real/virtual server, connected only to my local network, who runs postfix, courier-imapd, http server, php and an browser-based email client like roundcube or rainloop. So, when (1) receives incoming e-mail with FROM address from your domain, it just drops the email. Best regards, Fernando Atenciosamente, --- Fernando Maciel Souto Maior Projetos e Soluções de Tecnologia (31) 99226-9440 Vivo Em ter, 28 de mai de 2019 às 08:20, <an...@ursc.gov.in> escreveu: > Dear List, > > Lot of SPAM mails are being received where from and to address is > myself and the mail has contents which are dirty/bad. > > The original sender id will be different. > > How to handle such mails. > > -- > Anant S Athavale > > ------------------------------------------------------------------------------ > IMPORTANT NOTE: > > ISRO Satellite Centre (ISAC) was renamed as U R Rao Satellite Centre > (URSC). > Hence, the existing domain (isac.gov.in) is changed to new domain > ursc.gov.in > resulting into change of e-mail address from u...@isac.gov.in to > u...@ursc.gov.in. > Please note this change and update your contact details for new domain > (ursc.gov.in). > > ------------------------------------------------------------------------------ > Confidentiality Notice: This e-mail message, including any attachments, is > for > the sole use of the intended recipient(s) and may contain confidential and > privileged information. Any unauthorized review, use, disclosure or > distribution is prohibited. If you are not the intended recipient, please > contact the sender by reply e-mail and destroy all copies of the original > message. > > ------------------------------------------------------------------------------ > >
